Dimension Dinosaur CPU Upgrade

May 2, 2009 at 17:49:49
Specs: Microsoft Windows XP Professional, 2.519 GHz / 2047 MB
Hi guys,

Hardware noob here. Probably too much information, but here goes.

I am considering upgrading to a P4 2.8Ghz from my current P4 2.53Ghz:

Processor 1 (ID = 0)
Number of cores 1 (max 1)
Number of threads 1 (max 1)
Name Intel Pentium 4
Codename Northwood
Specification Intel(R) Pentium(R) 4 CPU 2.53GHz
Package Socket 478 mPGA (platform ID = 2h)
Extended CPUID F.2
Brand ID 9
Core Stepping B0
Technology 0.13 um
Core Speed 2519.1 MHz (19.0 x 132.6 MHz)
Rated Bus speed 530.3 MHz
Stock frequency 2533 MHz
Instructions sets MMX, SSE, SSE2
L1 Data cache 8 KBytes, 4-way set associative, 64-byte line size
Trace cache 12 Kuops, 8-way set associative
L2 cache 512 KBytes, 8-way set associative, 64-byte line size
FID/VID Control no

The problem I have been having is that when I go to the Intel Processor Spec Finder, the filters come back with 10 2.53's and 6 2.8's that all have almost identical specs.

These things are dirt cheap on Ebay and elsewhere, but often you only get minimum info. Is "Intel Pentium 4 2.8GHz/512/533 Socket 478 CPU" all I need to know to find the right chip for my SMSC EMC2700P MOBO?

Whew! Thanks so much.

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May 2, 2009 at 19:23:32
"SMSC EMC2700P" is the make/model of one of the sensors on your motherboard.

Personally, I think upgrading from a 2.53GHz to 2.80GHz would be a waste of time & money. Try installing a software overclocking program such as SetFSB. I just happen to be playing around with an HP Pavilion 753n which also has a 2.53GHz P4. I'm currently running it at 2.82GHz. Here's a screenshot that I took about 20 min ago:


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May 4, 2009 at 10:09:24
Hi Jam,

Thanks a lot for the reply. I went ahead and install CPU-Z, SetFSB, and SpeedFan and my screen shot is linked below. Played around with controls, but I am wondering if my system is supported.

On startup, here is are the scan results from Speed Fan:

Win9x:NO 64Bit:NO GiveIO:YES SpeedFan:YES
I/O properly initialized
Linked ISA BUS at $0290
Linked Intel 82801BA ICH2 SMBUS at $DCD0
Found nVidia GeForce 7800 GS
Linked nVidiaI2C0 SMBUS at $3D403E3F
Linked nVidiaI2C1 SMBUS at $3D403637
Linked nVidiaI2C2 SMBUS at $3D405051
Scanning ISA BUS at $0290...
SuperIO Chip=LPC47M534
Sensor's Base Address : $0C00
Scanning Intel SMBus at $DCD0...
SMBus msg : 09:49:03.593 Unsuccessful WRITEQUICK $00 to $44
SMBus msg : 09:49:03.593 Unsuccessful WRITEQUICK $00 to $44
Scanning I2CNVidia SMBus at $3D403E3F...
Address $2D appears to be WRITE ONLY...
Address $2E appears to be WRITE ONLY...
Address $48 appears to be WRITE ONLY...
Address $49 appears to be WRITE ONLY...
Address $4C appears to be WRITE ONLY...
Address $50 appears to be WRITE ONLY...
Scanning I2CNVidia SMBus at $3D403637...
Scanning I2CNVidia SMBus at $3D405051...
Found WDC WD1200JB-75CRA0 (120.0GB)
End of detection

Looks like it isn't supported.

SetFSB doesn't seem to do anything either, although there is pretty much no documentation on how to use it that I could find.

Anyway, thanks for your help. I was looking to upgrade my performance without spending much money, and these old P4's are like $20.

Another question: would an upgrade to a PR 3.06 Ghz make it worth the effort?

Thanks again.


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